The Effect of Saltwater on the Germination of Seeds - PowerPoint PPT Presentation

The Effect of Saltwater on the Germination of Seeds. A Research Project Conducted by Andy Herrmann Seeds are placed in water with different amounts of salt to germinate. Abstract.

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This study concerned the effects of varying amounts of salt in the water that seeds were placed in to germinate on the amount of germination of the seeds. The researcher chose Phaseoluslunatus, a bean known as the lima bean, for the experimentation. Thirty-two beans were placed in thirty-two cups, which were placed on four trays, setting it up so that eight beans were on each tray. 4800 ml of water were placed in four bowls, with varying amounts (0 mg, 10 mg, 20 mg, and 40 mg) of salt mixed into each. No results were recorded in any of the groups, which may be due to the cold time of year, or to the possibility of the seeds being dead already.

Do seeds germinate better(meaning with higher quality of sprouts) in water with more or less salt?

Germination of seeds is the first, and perhaps most important, step in plant growing. Seeds do not need to be in soil for this to happen, however. They can be in water alone, and they will still germinate. Once they have germinated, then they should be placed in soil. The amount of salt and other pollutants in water is increasingly worsening. Does salt have any effect on seed germination?

If eight seeds are put into their own small plastic cups four times (once with no salt added to the water, once with 2 tablespoons [approximately 10mg] of salt added to the water, once with 4 tablespoons added, once with 8 tablespoons added), then the seeds with no salt added will have the best quality of germination and sprouts, because the salt isn’t beneficial in plants.

Four trays (groups) each have eight small, plastic cups on them. Inside each cup, there is one lima bean seed, along with ten ml (about two tablespoons) of water. All the water in each group comes from its own “base.” All four trays are placed in the same warm place, ideally at about 70 degrees Fahrenheit. Each group’s water base has a different amount of salt added into it. One group has no salt, another has ten mg, the third has twenty mg, and the last has 40 mg mixed into it. The groups are checked every twelve hours, for germination of the seeds.

There were no results whatsoever in any of the groups. It is uncertain if the cause was simply the environment being too cold, or if the seeds were all just not meant to grow. The hypothesis cannot be accepted, or, at least, not at this time.

Future Studies

In the future, in order to find out if the experiment will work, an experimenter might try the exact same procedure at a warmer time of year than winter. Also, the experimenter could try other types of seeds alongside the lima beans, to see if the other types can germinate too. If no changes are observed after those changes, the experimenter might up the amount of salt in each group, except for the control, which is to remain saltless.